EP0918598B1 - Universally tiltable elevator structure for positioning an apparatus for picking up an article - Google Patents
Universally tiltable elevator structure for positioning an apparatus for picking up an article Download PDFInfo
- Publication number
- EP0918598B1 EP0918598B1 EP97931286A EP97931286A EP0918598B1 EP 0918598 B1 EP0918598 B1 EP 0918598B1 EP 97931286 A EP97931286 A EP 97931286A EP 97931286 A EP97931286 A EP 97931286A EP 0918598 B1 EP0918598 B1 EP 0918598B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- linearly extending
- members
- extending members
- motors
- upwardly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J17/00—Joints
- B25J17/02—Wrist joints
- B25J17/0258—Two-dimensional joints
- B25J17/0266—Two-dimensional joints comprising more than two actuating or connecting rods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J18/00—Arms
- B25J18/02—Arms extensible
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J18/00—Arms
- B25J18/02—Arms extensible
- B25J18/025—Arms extensible telescopic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J9/00—Programme-controlled manipulators
- B25J9/003—Programme-controlled manipulators having parallel kinematics
- B25J9/0063—Programme-controlled manipulators having parallel kinematics with kinematics chains having an universal joint at the base
- B25J9/0069—Programme-controlled manipulators having parallel kinematics with kinematics chains having an universal joint at the base with kinematics chains of the type universal-prismatic-universal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J9/00—Programme-controlled manipulators
- B25J9/02—Programme-controlled manipulators characterised by movement of the arms, e.g. cartesian coordinate type
- B25J9/04—Programme-controlled manipulators characterised by movement of the arms, e.g. cartesian coordinate type by rotating at least one arm, excluding the head movement itself, e.g. cylindrical coordinate type or polar coordinate type
- B25J9/041—Cylindrical coordinate type
- B25J9/042—Cylindrical coordinate type comprising an articulated arm
Definitions
- the present invention relates to an elevator structure which is useful for moving a robotic arm mechanism upwardly and downwardly and which further provides capability for tilting of the robotic arm mechanism.
- robot arms for positioning and placing objects is well known.
- the arms have Z-, R- and ⁇ - motion in a conventional cylindrical coordinate system.
- the capability of providing straight line motion is very important in the processing of semiconductor wafers so as to allow them to be very accurately positioned at a work station where processing steps take place.
- the R or straight line movement of the end effector or mechanical hand at the end of the arm has been accomplished in a number of manners.
- telescoping arms have been utilized for this purpose.
- one slidable member fits within another thus allowing linear extension of the arm.
- the links are connected to each other so that distal end of the first link is pivotally attached to the proximal end of the second link.
- the links utilize belt drives which are provided for coordinately rotating the second link to the first link to provide a rotation ratio, i 2,1 of 2/1, and to provide a rotation ratio, i 3,2, of 1/2 between the end effector and the distal link of the robotic arm.
- i 2,1 is equal to 2/1
- i 3,2 is equal to 1/2
- the result is that i 31 , the rotation ratio of the end effector relative to the first link, is equal to 2/1 x 1/2 or unity and straight line motion results.
- 3 link arms such as those shown in U.S.
- Patent 5,064,340 the rotation ratio between the third and second links is 1/1 and other ratios are as just discussed above.
- i 21 is equal to 2/1
- i 3,2 is equal to 1/1
- i 4,3 is equal to 1/2. This assures that i 4,1 is equal to unity and straight line motion results.
- United Kingdom Patent Application GB 2193482A published February 10, 1988 discloses a wafer handling arm which includes two unequal length links with the distal end of one link being pivotally attached to the proximal end of the other link, with the hand being integral with the distal end of the distal link and which utilizes a belt drive which is fixed to a cam to attain nearly straight line motion.
- a pair of isosceles triangle type linkages face one another and the mechanical hand is pivotally attached to the distal ends of both of the distal links.
- the proximal ends of each of the proximal links is driven in an opposite direction of rotation by a single rotating motor shaft, generally through use of appropriate gearing.
- a typical semiconductor wafer cassette has a plurality of semiconductor wafers stacked one above the other and spaced apart from one another. Each wafer is generally held at its periphery by a narrow ledge with the great majority of the area of the wafer being untouched so as to avoid contamination or other problems.
- the wafers are generally loaded in the cassettes mechanically and occasionally one or more wafers in a cassette may end up misaligned, that is, canted, with one portion of the periphery upon a higher ledge than the diametrically opposite portion.
- current robotic arms utilized in the semiconductor industry are not able to compensate and pick up the canted semiconductor wafer and deliver it for processing. This results in lost production.
- the present invention is directed to overcoming one or more of the problems set forth above within the scope of the claims.
- a tilting elevator is set forth.
- a rigid frame has a base, a structurally rigid structure extending upwardly from the base, and a flange attached to the structure top. The flange is generally parallel to the base.
- a movable elevatable structure is telescopically mounted to the rigid frame.
- the elevatable structure comprises upper and lower spaced apart generally parallel plates. Three generally parallel rods extend between the plates and are connected to them by universal joints.
- a stationary motor system is supported, generally by the base. Each of the rods is movable relative to the plates independently of each other rod.
- a method for picking up misaligned workpieces from cassettes and the like using a robotic arm mounted to an elevator of the nature set forth above which further includes a sensor on the end effector which detects the misalignment and conveys the information to a computer controller which then controls motion of the end effector and tilting of the elevator so that the workpiece can be properly picked up.
- the present invention provides apparatus and methods whereby misaligned, i.e., canted, semiconductor wafers or other workpieces can be picked up by a robotic arm mechanism and delivered for processing.
- Use of conventional computer control of the robotic arm mechanism can be combined with sensor input from the end effector. This allows for the coordinated motion of the robotic arm mechanism and tilting of the elevator relative to the Z- axis to accomplish the pickup. The result is less down time and increased throughput for a semiconductor processing or other operation.
- the terms “belt”, “belt means”, “pulley” and “pulley means” are, at times, referred to as gearing. It should further be understood that the terms “belt” and “belt means” are used broadly to include toothed and untoothed constructions, chains, fabric belts, woven belts and the like. They may be constructed of any suitable material, natural or synthetic, organic, inorganic, polymeric, composite or metallic. Likewise the terms “pulley” and “pulley means” are used broadly to include toothed and untoothed constructions, constructions which positively engage with respective belts or which engage only frictionally with such belts. They too may be constructed of any suitable material, natural or synthetic, organic, inorganic, polymeric, composite or metallic. With this in mind the following detailed discussion of the invention will be set forth. It should further be noted that the term “rod” includes tubular members.
- FIG 1 illustrates a generally universally tiltingly adjustable elevator structure 10 in accordance with the present invention.
- the elevator is shown both in its retracted form (in solid lines) and in its expanded form (in dashed lines).
- the elevator structure 10 is made up of two distinct portions, namely, a rigid frame 12 which includes a base 14 having an upwardly facing generally planar surface 16, a rigid vertical structure 18 having a structure upper end portion 20, the rigid structure 18 extending upwardly generally orthogonally from the planar surface 16 to the structure upper end portion 20 and a flange 22 attached to the structure upper end portion 20, the flange 22 being generally parallel to the planar surface 16.
- the second part of the elevator 10 is a movable elevatable structure 24 which is telescopically mounted to the rigid frame 12. It moves up and down through an opening 25 in the flange 22.
- the movable elevatable structure 24 includes an upper plate 26, a lower plate 28 which is positioned at a spaced distance from and generally parallel to the upper plate 26 and at least three non-coplanar linearly extending generally parallel members 30.
- Each of the members 30 has a respective upper end portion 32 and a respective lower end portion 34.
- Each of the members 30 extends from the upper plate 26 to the lower plate 28.
- the members 30 are each generally (but not exactly during tilting) orthogonal relative to the plates 26 and 28.
- the non-coplanar members are substantially equally spaced about the peripheries of the upper plate 26 and the lower plate 28.
- a plurality of upper universal joints 36 are supported by the upper plate 26.
- the number of upper universal joints 36 is equal to the number of linearly extending members 30.
- Each of the upper universal joints 36 is arranged to universally mount the respective upper end portion 32 of a respective one of the linearly extending members 30 to the upper plate 26.
- the number of lower universal joints 38 is equal to the number of linearly extending members 30.
- Each of the lower universal joints 38 is arranged to universally mount the respective lower end portion 34 of a respective one of the linearly extending members 30 to the lower plate 28.
- Motor means 40 is rigidly supported, generally by the base 14. It serves for moving each of the linearly extending members 30 independently of each other of the linearly extending members 30 toward and away from the base 14.
- the preferred motor means comprises three separate motors, one of which, 42, is shown in Figure 2. Each motor operates via a respective belt and pulley arrangement 44 to rotate a respective lead screw 46 which is mounted for rotation relative to the base 14 and to the flange 22.
- a bracket 52 is attached to the linearly extending member 30 and has an extending arm 54 which defines a bore 56 which includes a thread follower structure 57, for example, a ball screw bearing (preferred) or mating threads, which engages with the lead screw 46.
- the elevator structure 10 in accordance with the present invention is generally useful in combination with an article positioning apparatus 60 as seen in Figure 3 which can be suitably mounted to the elevatable structure 24, generally to the upper plate 26 or to the lower plate 28. As shown it is mounted to the upper plate 26.
- the article positioning apparatus 60 will be in the nature of a robotic arm apparatus.
- the particular apparatus illustrated includes an end effector 62 pivotally connected to a forearm 64 which is in turn pivotally connected to a proximal arm 66, which is pivotally connected about an axis 69 to a post 68 which can be conventionally moved vertically to provide Z- axis motion.
- Appropriate conventional drive means are also provided which provide both R- (straight line) and ⁇ -(rotational) motion about the axis 69.
- the end effector 62 would conventionally include vacuum pickup means which are useful for picking up semiconductor wafers and the like. All are conventionally controlled by control means, generally a computer circuit (not illustrated).
- a suitable position measuring sensor system 70 can include a) signal transmitting means for transmitting a first signal (e.g., a photo or a sonic signal) longitudinally forward from the distal end of the end effector 62 parallel to the workpieces, b) signal detector means (e.g., a photo or a sonic signal detector) for providing a signal indicative of impinging incident energy, and c) energy gathering and transmitting means for gathering energy caused by reflection of the first signal from a workpiece and transmitting such energy to the signal detector means.
- Status signal transmitting means are provided for transmitting a signal to the control means indicative of the presence or absence of energy caused by reflection of the first signal from a respective one of the workpieces.
- the position measuring sensor system 70 can be provided on the end effector 62 for detecting whether or not any wafer to be picked up is properly aligned or is misaligned and somehow canted.
- the elevator structure 10 can be utilized to tilt the entire article positioning apparatus 60 so that the vacuum pickup on the end effector 62 is aligned to properly pick up the wafer. Thereafter, the tilt of the elevator structure 10 can be adjusted utilizing the motor means 40 so that the wafer is in proper position for delivery to a chuck for pre-alignment purposes and/or to a wafer processing station in a semiconductor processing operation.
- the article positioning apparatus 60 is shown in two positions, one corresponding to full retraction of both the rod 68 and the elevator 10 and the other corresponding to at least partial extension of the elevator 10 and the article positioning apparatus 60.
- the article positioning apparatus 60 has a bottom portion 62 which is supported by the upper plate 26 in the embodiment illustrated.
- the article positioning apparatus 60 extends upwardly through the generally central opening 25 in the flange 22 to above the upper plate 26.
- Rigidity to the structure is provided by the rigid vertical structure 18 which in the particular embodiment illustrated comprises three tubes which are rigid and which are attached from the base 14 to the flange 22.
- a pneumatic pressure cylinder 86 is attached to a first membrane 84.
- a flange 92 is rigidly attached to a second membrane 82 with bolts 79.
- a cylinder rod 89 applies a force upon the flange 92.
- the flange 92 transmits this force to the second membrane 82.
- the second membrane 82 which is rigidly attached with bolts 91 to the bottom of the elevator 10, bows upwardly.
- the first membrane 84 has a tendency to bow downwardly.
- a flange 85 is spaced apart from and under the first membrane 84.
- a structure 88 is attached with its upper end portion 93 attached to the flange 92.
- the structure 88 passed through the first membrane 84 in non-contacting relation and has its bottom portion attached to the flange 85.
- An adjustment mechanism 87 allows the flange 85 to be positioned closer to or further from the first membrane 84. Accordingly, a gap 81 as defined between the flange 85 and the first membrane 84, determines the travel of the cylinder rod 89 and thereby the extent of the deformation of the first and second membranes 84, 82.
- the invention is concerned with a workpiece handling system, i.e. a combined elevation and article positioning apparatus, which comprises a robotic arm mechanism which provides motion of an end effector 62 which is adapted to pick up and transport workpieces.
- the robotic arm mechanism is mounted on an elevator structure 10 for linear motion along a motion axis of the elevator structure 10 to provide Z- motion for the robotic arm mechanism as a whole.
- the improvement of the invention comprises universal direction tilting means for tilting the floor and ceiling of the movable elevatable structure 24 in all directions relative to its motion axis 69.
- a method for picking up an ostensibly horizontally lying generally planar workpiece which is misaligned from the horizontal and which is one of a plurality of stacked spaced apart workpieces.
- the end effector is moved to the vicinity of the workpieces.
- the sensor 70 on the end effector 62 is utilized to measure the alignment of each workpiece prior to its being picked up.
- the degree of misalignment is measured and communicated to computer control means 96 shown in Figures 2 and 3.
- the computer control means 96 is utilized to control the motor means 40 and the article positioning apparatus to align the end effector 62 to pick up the misaligned workpiece.
- the motor means 40 is then controlled again to position the workpiece in the desired horizontal orientation.
- the present invention provides a tiltable elevator structure 10 for use with an elevatable robotic arm structure 60 and is useful for a number of things, particularly for semiconductor wafer processing.
Description
Claims (11)
- A universally tiltingly adjustable elevator structure for positioning an apparatus for picking up an article, comprising:A rigid frame (12) comprising:a base (14) having an upwardly facing generally planar surface;a rigid structure (18) having a structure upper end portion, the structure extending upwardly generally orthogonally from the planar surface to the structure upper end portion; anda flange (22) attached to the structure upper end portion, the flange being generally parallel to the planar surface; anda movable and tiltable elevatable structure (24) telescopically mounted to the rigid frame, comprising:an upper plate (26);a lower plate (28) positioned a spaced distance from and generally parallel to the upper plate;at least three non-coplanar linearly extending generally parallel members (30), each of the members having a respective upper end portion (32) and a respective lower end portion (34), each of the members extending from the upper plate (26) to the lower plate (28), the members each being generally orthogonal relative to the plates;a plurality of upper universal joints (36) supported by the upper plate (26), the number of upper universal joints (36) being equal to the number of linearly extending members (30), each of the upper universal joints (36) being arranged to universally mount the respective upper end portion of a respective one of the linearly extending members (30) to the upper plate (26);a plurality of lower universal joints (38) supported by the lower plate (28), the number of lower universal joints (38) being equal to the number of linearly extending members (30), each of the lower universal joints (38) being arranged to universally mount the respective lower end portion of a respective one of the linearly extending members (30) to the lower plate; and
- An elevator structure as set forth in claim 1, characterized in that the motor means (40) comprises:a plurality of individual motors (42) supported by the base (14), the number of motors being equal to the number of linearly extending members (30), each of the motors being connected to move a corresponding one of the linearly extending members selectively upwardly and downwardly.
- An elevator structure as set forth in claim 2, characterized in that the connection of each of the motors (42) to move the corresponding one of the linearly extending members (30) comprises:a plurality of lead screws (46) supported between the base (14) and the flange (22) and being rotatable relative thereto, the number of lead screws being equal to the number of linearly extending members, each lead screw being located adjacent and parallel to a respective one of the linearly extending members, each of the motors (42) being connected to rotate a corresponding one of the lead screws;a plurality of brackets (52), the number of brackets being equal to the number of linearly extending members, each bracket being attached to a respective one of the linearly extending members, each of the brackets having an arm (54) extending from the respective linearly extending member to a distal portion thereof, each distal portion having a bore (56) therethrough which includes a thread follower (57) which engages with the corresponding lead screw in such a manner that rotation of the lead screw imparts linear motion upwardly and downwardly to the corresponding linearly extending member; anda plurality of belt means (44), the number of belt means being equal to the number of motors, each belt means being driven by acorresponding one of the motors and being engaged to rotate a corresponding one of the lead screws.
- An elevator structure as set forth in claim 1, characterized by
an article positioning apparatus (60) supported by the elevatable structure (24), the article positioning apparatus extending upwardly through a generally central opening (25) in the flange (22) to above the upper plate. - An elevator structure as set forth in claim 4, characterized in that the elevatable structure (24) further includes:rigidity increasing means (18) attached to the lower plate (28) of the movable elevatable structure for increasing the rigidity of the bottom portion of the movable elevatable structure.
- An elevator structure as set forth in claim 5, characterized in that the rigidifying means comprises:biasing means for biasing the bottom portion of the movable elevatable structure (24).
- An elevator structure as set forth in claim 6, characterized in that the biasing means comprises:a bias transmitting, structure located below and spaced apart from the lower plate;attachment means having a lower portion attached to and extending upwardly from the bias transmitting structure and through the lower plate in non-contacting relation thereto, the attachment means having an upper portion attached to the bottom portion of the movable elevatable structure; andforce exerting means for exerting a force upwardly from the lower plate against the bottom portion of the movable elevatable structure.
- An elevator structure as set forth in claim 7, characterized in that the force exerting means comprises a pneumatic cylinder (86).
- An elevator structure as set forth in claim 8, characterized in that the motor means (40) comprises:a plurality of individual motors (42) supported by the base (14), the number of motors being equal to the number of linearly extending members (30), each of the motors being connected to move a corresponding one of the linearly extending members upwardly and downwardly.
- An elevator structure as set forth in claim 9, characterized in that the connection of each of the motors to move the corresponding one of the linearly extending members (30) comprises:a plurality of lead screws (46) supported between the base (14) and the flange (22) and being universally rotatable relative thereto, the number of lead screws being equal to the number of linearly extending members, each lead screw being located adjacent and parallel to a respective one of the linearly extending members, each of the motors being connected to rotate a corresponding one of the lead screws;a plurality of brackets (52), the number of brackets being equal to the number of linearly extending members, each bracket being attached to a respective one of the linearly extending members, each of, the brackets having an arm (54) extending from the respective linearly extending member to a distal portion thereof, each distal portion having a bore (56) therethrough which includes a thread follower (57) which engages with the corresponding lead screw in such a manner that rotation of the lead screw imparts linear motion to the corresponding linearly extending member; anda plurality of belt means (44), the number of belt means being equal to the number of motors, each belt means being driven by a corresponding one of the motors and being engaged to rotate a corresponding one of the lead screws.
- A method for picking up an ostensibly horizontally lying generally planar workpiece which is misaligned from the horizontal and which is one of a plurality of stacked spaced apart workpieces, comprising:providing a combined elevation and article positioning apparatus, comprising:a rigid frame (12) comprising:a base (14) having an upwardly facing generally planar surface;a rigid structure extending (18) upwardly generally orthogonally from the planar surface to a structure upper end portion; anda flange (22) having a generally centrally positioned opening (25) therethrough, the flange being attached to the structure upper end portion, the flange being generally parallel to the planar surface; anda movable elevatable structure (24) telescopically mounted to the rigid frame, comprising:an upper plate (26);a lower plate (28) positioned a spaced distance from and generally parallel to the upper plate;at least three linearly extending generally parallel spaced apart non-coplanar members (30), each of the members having a respective upper end portion (32) and a respective lower end portion (34), each of the members extending from the upper plate to the lower plate, the members each being generally orthogonal relative to the plates;a plurality of upper universal joints (36) supported by the upper plate, the number of upper universal joints being equal to the number of linearly extending members, each of the upper universal joints being arranged to universally mount the respective upper end portion of a respective one of the linearly extending members to the upper plate;a plurality of lower universal joints (38) supported by the lower plate, the number of lower universal joints being equal to the number of linearly extending members, each of the lower universal joints being arranged to universally mount the respective lower end portion of a respective one of the linearly extending members to the lower plate; andmotor means (40) supported rigidly relative to the base for moving each of said linearly extending members independently of each other upwardly and downwardly; andan article positioning apparatus (60) supported by the elevatable structure, the article positioning apparatus extending upwardly through the generally central opening in the flange to above the upper plate, the article positioning apparatus having an end effeator (62) adapted to pick up the workpieces, the end effector including a sensor (70) for determining the alignment of each of the workpieces; the article positioning apparatus including computer control means (96) for controlling the operation of the article positioning apparatus and of the motor means, the sensor communicating with the computer control means;moving the end effector (62) to the vicinity of the workpieces;utilizing the sensor to measure the alignment of each workpiece prior to picking it up;when any of the workpieces are misaligned communicating the degree of misalignment to the computer control means; andutilizing the computer control means to control the motor means and the article positioning apparatus to align the end effector to pick up the misaligned workpiece.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05100277A EP1529607A1 (en) | 1996-06-13 | 1997-06-11 | Universally tiltable elevator structure for positioning an apparatus for picking up an article |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/661,292 US5954840A (en) | 1996-06-13 | 1996-06-13 | Universally tiltable Z axis drive arm |
US661292 | 1996-06-13 | ||
PCT/US1997/010706 WO1997047440A1 (en) | 1996-06-13 | 1997-06-11 | Universally tiltable z axis drive arm |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05100277A Division EP1529607A1 (en) | 1996-06-13 | 1997-06-11 | Universally tiltable elevator structure for positioning an apparatus for picking up an article |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0918598A1 EP0918598A1 (en) | 1999-06-02 |
EP0918598A4 EP0918598A4 (en) | 2000-02-23 |
EP0918598B1 true EP0918598B1 (en) | 2005-04-20 |
Family
ID=24652990
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97931286A Expired - Lifetime EP0918598B1 (en) | 1996-06-13 | 1997-06-11 | Universally tiltable elevator structure for positioning an apparatus for picking up an article |
EP05100277A Withdrawn EP1529607A1 (en) | 1996-06-13 | 1997-06-11 | Universally tiltable elevator structure for positioning an apparatus for picking up an article |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05100277A Withdrawn EP1529607A1 (en) | 1996-06-13 | 1997-06-11 | Universally tiltable elevator structure for positioning an apparatus for picking up an article |
Country Status (6)
Country | Link |
---|---|
US (2) | US5954840A (en) |
EP (2) | EP0918598B1 (en) |
JP (1) | JP4034353B2 (en) |
AU (1) | AU3495697A (en) |
DE (1) | DE69733069T2 (en) |
WO (1) | WO1997047440A1 (en) |
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DE69415517T3 (en) * | 1993-04-16 | 2005-03-17 | Brooks Automation, Inc., Lowell | HANDLING DEVICE WITH JOINT CARRIER |
US5813287A (en) * | 1994-03-02 | 1998-09-29 | Renishaw Plc | Coordinate positioning machine |
JP3640087B2 (en) * | 1994-11-29 | 2005-04-20 | 豊田工機株式会社 | Machine Tools |
JPH08221132A (en) * | 1995-02-10 | 1996-08-30 | Fanuc Ltd | Method and device for automatic adjustment of servo parameter |
-
1996
- 1996-06-13 US US08/661,292 patent/US5954840A/en not_active Expired - Lifetime
-
1997
- 1997-06-11 EP EP97931286A patent/EP0918598B1/en not_active Expired - Lifetime
- 1997-06-11 AU AU34956/97A patent/AU3495697A/en not_active Abandoned
- 1997-06-11 JP JP50189798A patent/JP4034353B2/en not_active Expired - Lifetime
- 1997-06-11 EP EP05100277A patent/EP1529607A1/en not_active Withdrawn
- 1997-06-11 DE DE69733069T patent/DE69733069T2/en not_active Expired - Lifetime
- 1997-06-11 WO PCT/US1997/010706 patent/WO1997047440A1/en active IP Right Grant
-
1998
- 1998-06-23 US US09/103,261 patent/US6059516A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107433577A (en) * | 2017-09-20 | 2017-12-05 | 柳州欧卡机器人有限公司 | A kind of circular cylindrical coordinate type industrial robot of high workload efficiency |
Also Published As
Publication number | Publication date |
---|---|
JP2000512218A (en) | 2000-09-19 |
EP1529607A1 (en) | 2005-05-11 |
DE69733069T2 (en) | 2006-01-12 |
US6059516A (en) | 2000-05-09 |
DE69733069D1 (en) | 2005-05-25 |
EP0918598A4 (en) | 2000-02-23 |
US5954840A (en) | 1999-09-21 |
AU3495697A (en) | 1998-01-07 |
WO1997047440A1 (en) | 1997-12-18 |
EP0918598A1 (en) | 1999-06-02 |
JP4034353B2 (en) | 2008-01-16 |
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